Some laws are simply too late. You cannot wait for an industry to bloom and then, only then, regulate it. Someone will then complain about restrictions on business (limiting the right to sell of a company) and you see lobbying everywhere. Putting the burden on the owner, not sure is the right thing for existing owners. Regulate the manufacturers, so that the 'big drones' are regulated and licensed, but not the hobby ones, that would be a killer law.